The Pete meter of a rectangle with a length of 10 cm is 31 cm What is the width of the rectangle?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate